Add a new column to the customer table to store the customer's cell phone number. First, add the new column to the consolidated
database by executing the following SQL statement in the instance of Interactive SQL that is connected to the consolidated
database.

ALTER TABLE customer ADD cell_phone VARCHAR(12) DEFAULT NULL;

Create a new script version called my_ver2 to handle synchronizations from remote databases with the new schema. Remote databases with the old schema continue to use
the old script version, my_ver1. Execute the following SQL statements on the consolidated database.